Description
HK MR556 Complete Bolt Group
Bolt carriers will be marked ".223 Rem" or "5.56 x 45".
Includes The Following HK German Factory Parts:
- MR556 Bolt Carrier
- Bolt head complete
- Firing pin spring
- Firing pin
- Cam pin
- All misc parts that comprise a complete bolt group
Additional Information
Origin: |
German |
Firearm Model: |
HK MR556 |
Firearm Model: |
HK CR556 |
Caliber: |
5.56 / .223 |
Color: |
Black |
Material: |
Steel |